Hitachi EX80u Excavator Operational Principle+Troubleshooting+Workshop Manual – PDF Download

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Hitachi EX80u Excavator Operational Principle+Troubleshooting+Workshop Manual

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Hitachi EX80u Excavator Operational Principle+Troubleshooting+Workshop Manual

This Listing includes all of the manuals mentioned below:

• Hitachi EX80u Excavator Workshop Manual
• Hitachi EX80u Excavator Operational Principle Manual
• Hitachi EX80u Excavator Troubleshooting Manual
• Hitachi EX80u Excavator Circuit Diagram & Harness

HITACHI EX80U EXCAVATOR OPERATIONAL PRINCIPLE+TROUBLESHOOTING+WORKSHOP MANUAL – PDF DOWNLOAD:

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Hitachi EX80u Excavator Operational Principle+Troubleshooting+Workshop Manual

TO THE READER
• This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
• Be sure to thoroughly read this manual for correct product information and service procedures.
• If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using ″Service Manual Revision Request Form″ at the end of this manual.
ADDITIONAL REFERENCES
• Please refer to the materials listed below in addition to this manual.
• The Operator’s Manual
• The Parts Catalog
• Operation Manual of the Engine
• Parts Catalog of the Engine
• Hitachi Training Material
MANUAL COMPOSITION
• This manual consists of three portions: the Technical Manual (Operational Principle), the Technical Manual (Troubleshooting) and the Workshop Manual.
• Information included in the Technical Manual (Operational Principle): technical information needed for redeliver and delivery, operation and activation of all devices and systems.
• Information included in the Technical Manual (Troubleshooting): technical information needed for operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal/installation and assemble/disassemble procedures.

Table Of Contents:

Hitachi EX80u Excavator Operational Principle+Troubleshooting+Workshop Manual

• Hitachi EX80u Excavator Workshop Manual

Group 1 Cab
Remove and Install Cab W2-1-1
Dimensions of Cab Glass W2-1-5
Group 2 Counterweight
Remove and Install Counterweight W2-2-1
Group 3 Main Frame
Remove and Install Main Frame W2-3-1
Group 4 Pump Device
Remove and Install Pump Device W2-4-1
Disassemble Pump Device W2-4-4
Assemble Pump Device W2-4-8
Maintenance Standard W2-4-14
Disassemble and Assemble
Pilot Pump W2-4-16
Group 5 Control Valve
Remove and Install Control Valve 1 W2-5-1
Disassemble Control Valve 1 W2-5-5
Assemble Control Valve 1 W2-5-15
Remove and Install Control Valve 2 W2-5-26
Disassemble Control Valve 2 W2-5-28
Assemble Control Valve 2 W2-5-30
Group 6 Swing Device
Remove and Install Swing Device W2-6-1
Disassemble Swing Reduction Gear W2-6-4
Assemble Swing Reduction Gear W2-6-10
Disassemble Swing Motor W2-6-18
Assemble Swing Motor W2-6-22
Maintenance Standard W2-6-28
Group 7 Pilot Valve
Remove and Install Pilot Valves for
Front Attachment and Swing W2-7-1
Disassemble Pilot Valve for
Front Attachment and Swing W2-7-8
Assemble Pilot Valve for
Front Attachment and Swing W2-7-12
Remove and Install Pilot
Valve for Boom Swing W2-7-19
Disassemble Pilot
Valve for Boom Swing W2-7-22
Assemble Pilot Valve for
Boom Swing W2-7-24
Group 8 Pilot Shut-Off Valve
Remove and Install Pilot
Shut-Off Valve W2-8-1
Disassemble Pilot Shut-Off Valve W2-8-4
Assemble Pilot Shut-Off Valve W2-8-6
Group 9 Shockless Valve
Remove and Install Shockless Valve W2-9-1
Disassemble and Assemble
Shockless Valve W2-9-3
Group 10 Solenoid Valve
Remove and Install Solenoid Valve W2-10-1
Disassemble Proportional
Solenoid Valve W2-10-4
Assemble Proportional Solenoid Valve W2-10-6
Disassemble Pilot Relief Valve W2-10-8
Assemble Pilot Relief Valve W2-10-10

• Hitachi EX80u Excavator Operational Principle Manual

Group 1 Pump Device
Outline T3-1-1
Main Pumps (1 and 2) T3-1-3
Main Pump 3 and Pilot Pump T3-1-6
Group 2 Swing Device
Outline T3-2-1
Swing Motor T3-2-2
Valve Unit T3-2-4
Swing Reduction Gear T3-2-6
Group 3 Control Valve
Outline T3-3-1
Hydraulic Circuit T3-3-8
Flow Combiner Valve T3-3-12
Main Relief Set Pressure Change T3-3-13
Boom Anti-Drift Valve T3-3-14
Main Relief Valve T3-3-16
Overload Relief Valve T3-3-17
Group 4 Pilot Valve
Outline T3-4-1
Operation T3-4-2
Group 5 Travel Device
Outline T3-5-1
Travel Motor T3-5-2
Travel Brake Valve T3-5-9
Travel Reduction Gear T3-5-11
Group 6 Others (Upperstructure)
Pilot Shut-Off Valve T3-6-1
Shockless Valve T3-6-2
Solenoid Valve Unit T3-6-6
Pilot Relief Valve T3-6-8
EC Motor T3-6-8
Group 7 Others (Undercarriage)
Swing Bearing T3-7-1
Center Joint T3-7-2
Track Adjuster T3-7-3

• Hitachi EX80u Excavator Troubleshooting Manual

Group 1 Introduction
Operational Performance Tests T4-1-1
Preparation for Performance
Test T4-1-2
Group 2 Standard
Operational Performance
Standard Table T4-2-1
Main Pump P-Q Diagram T4-2-4
Sensor Activating Range T4-2-5
Group 3 Engine Test
Engine Speed T4-3-1
Engine Compression Pressure T4-3-2
Valve Clearance T4-3-4
Nozzle Check T4-3-5
Injection Timing T4-3-8
Group 4 Excavator Test
Travel Speed T4-4-1
Track Revolution Speed T4-4-2
Mistrack Check T4-4-3
Travel Motor Leakage T4-4-4
Swing Speed T4-4-5
Swing Function Drift Check T4-4-6
Swing Motor Leakage T4-4-7
Maximum Swingable
Slant Angle T4-4-8
Swing Bearing Play T4-4-9
Hydraulic Cylinder Cycle Time T4-4-10
Dig Function Drift Check T4-4-12
Control Lever Operating Force T4-4-13
Control Lever Stroke T4-4-14
Boom Raise/Swing Combined
Operation Check T4-4-15
Group 5 Component Test
Primary Pilot Pressure T4-5-1
Secondary Pilot Pressure T4-5-3
Main Relief Valve Set Pressure T4-5-4
Overload Relief Valve Set Pressure T4-5-10
Main Pump Flow Rate Measurement T4-5-14
Swing Motor Drainage T4-5-18
Travel Motor Drainage T4-5-20
Group 6 Adjustment
Engine Speed Adjustment and
Engine Learning T4-6-1
Boom Lowering Method
When Engine Stalling T4-6-2
Check of Governor Lever and
Fuel Cut Lever Position T4-6-4

Please Note:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted